$153 Cheap American Airlines flights Los Angeles (LAX) to St. Louis (STL)

You can find cheap round-trip American Airlines flights from $272 from LAX to STL by sorting your results from “Price (lowest to highest)” on Expedia. Or look for options from $153 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the least expensive months to jet away to St. Louis with American Airlines. You could also find great deals on one-way and return fares in February.

For cheap American Airlines fares from Los Angeles Intl. Airport (LAX) to Lambert-St. Louis Intl. Airport (STL), start searching one to three months before your planned departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the cost. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

American Airlines offers direct flights from Los Angeles Intl. Airport (LAX) to Lambert-St. Louis Intl. Airport (STL), with 4 weekly departures. Simply apply the “Nonstop” and “Airline” filters while searching on Expedia to find all direct American Airlines flights to STL.

Leave Los Angeles Intl. Airport (LAX) for Lambert-St. Louis Intl. Airport (STL) on a direct American Airlines flight, and you’ll be airborne for about 3h 36m.

The first American Airlines flight from LAX to STL departs at 5:27PM UTC-8, arriving at 11:03PM UTC-6. If you prefer to jet off later, the last American Airlines flight leaves LAX at 5:27PM UTC-8 and touches down at STL at 11:03PM UTC-6. Flying before noon is often a good option as morning and mid-morning flights tend to experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Lambert-St. Louis Intl. Airport (STL) is the main St. Louis gateway for American Airlines flights from Los Angeles Intl. Airport (LAX).

Hop on an American Airlines flight from Los Angeles Intl. Airport (LAX) to Lambert-St. Louis Intl. Airport (STL), and you’ll likely be seated on an Airbus A319. Bear in mind though, that the aircraft type can change due to operational needs.

It’s generally possible to cancel or modify your flight, although there may be additional fees if your booking was made more than 24 hours ago. Need flexible options? Make use of our “No cancel fee” or “Changes included” filter to find flights that won’t charge you extra if you have to adjust your plans. To update your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for more details.